A nurse is caring for a client who is 1 day postoperative following an open thoracotomy. The client is receiving oxygen mist at 40% by face tent. The client's SPO2 is 89-96%. ABG results are: pH 7.31, PaO2 93 mm Hg, PCO2 5O mm Hg, HCO3 25 mEq/L. Which of the following is an appropriate action by the nurse?

Position the client prone and have the respiratory therapist perform postural drainage.

Place the client in high-Fowler's position and encourage the use of incentive spirometer and coughing.

Increase oxygen to 70%.

Switch oxygen to a nonrebreather mask.

Answer and Explanation

The Correct Answer is B

A. Prone positioning and postural drainage are typically not appropriate interventions for a client 1 day postoperative following an open thoracotomy, as this could place stress on the incision site and cause discomfort or injury.

B. High-Fowler's position facilitates lung expansion, which can improve ventilation and oxygenation. Encouraging the use of an incentive spirometer and promoting coughing helps clear secretions and expand the lungs, addressing the mild respiratory acidosis indicated by the ABG results (pH 7.31 and PaCO2 50 mm Hg).

C. Increasing oxygen to 70% is not appropriate, as the PaO2 level is within normal limits (93 mm Hg). The client's issue appears to be related more to ventilation (indicated by the elevated PaCO2) rather than oxygenation, so additional oxygen would not address the underlying cause and could lead to oxygen toxicity if used long-term.

D. A nonrebreather mask delivers a high concentration of oxygen, which is not necessary in this case since the client’s PaO2 is already adequate. The primary issue is not a lack of oxygen but rather the retention of CO2, so promoting ventilation and lung expansion through positioning and respiratory exercises is more appropriate.

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Correct Answer is B

Explanation

A. Metabolic acidosis:

Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (<22 mEq/L) due to an excess of acids in the body or a loss of bicarbonate. However, in the given ABG values, the pH is low (7.22), but the bicarbonate level is elevated (28 mEq/L), which does not align with metabolic acidosis. Therefore, metabolic acidosis is not the correct interpretation in this case.

B. Respiratory acidosis:

Respiratory acidosis occurs when there is inadequate removal of carbon dioxide (CO2) by the lungs, leading to an accumulation of CO2 in the blood and a decrease in pH. In the ABG values provided, the pH is low (7.22), and the PaCO2 is elevated (68 mm Hg), indicating respiratory acidosis as the primary disturbance. This interpretation is supported by the elevated PaCO2 and the low pH, making it the correct choice based on the given data.

C. Respiratory alkalosis:

Respiratory alkalosis results from hyperventilation, leading to excessive elimination of CO2 and a decrease in PaCO2 levels. However, in the ABG values presented, the PaCO2 is elevated (68 mm Hg), which contradicts the expected decrease seen in respiratory alkalosis. Therefore, respiratory alkalosis is not the correct interpretation of the ABG values in this case.

D. Metabolic alkalosis:

Metabolic alkalosis is characterized by a high pH (>7.45) and a high bicarbonate level (>26 mEq/L) due to excessive loss of acids or an increase in bicarbonate levels. However, in the ABG values provided, the pH is low (7.22), and the bicarbonate level is elevated (28 mEq/L), which is not consistent with metabolic alkalosis. Therefore, metabolic alkalosis is not the correct interpretation based on the given data.

A. "Bake or grill the meat rather than frying it." B. “Check your radial pulse twice a day.” C. "Read food labels to determine sodium content." D. “Weigh yourself every morning and every night."

Correct Answer is C

Explanation

A. "Bake or grill the meat rather than frying it."

This statement is more related to reducing fat intake rather than managing sodium levels. While reducing fried foods can be beneficial for overall health, it doesn't directly address the issue of sodium intake, which is crucial in managing hypernatremia.

B. “Check your radial pulse twice a day.”

Checking the radial pulse is a method used to monitor heart rate and rhythm. It is not directly related to managing sodium levels or hypernatremia. Although monitoring vital signs is important in general health care, it is not specific to addressing mild hypernatremia.

C. "Read food labels to determine sodium content."

This statement is the correct choice. Managing sodium intake is a key component in managing hypernatremia. Reading food labels helps patients identify high-sodium foods and make choices that are lower in sodium content, which can be crucial in preventing or managing mild hypernatremia.

D. “Weigh yourself every morning and every night."

While regular weight monitoring can be important for certain health conditions, it is not directly related to managing mild hypernatremia. Weight changes may occur with fluid retention or loss, but monitoring sodium intake and hydration status is more directly relevant to managing hypernatremia.

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Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

A nurse teaches a patient who is at risk for mild hypernatremia. Which statement does the nurse include in this patient's teaching?

Correct Answer is C

Explanation

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